Arizona vs Illinois: Local Ordinance Comparison (2026)

ADU Rules

Arizona SB-1161 (2024) preempts municipalities with populations over 75,000, requiring them to permit accessory dwelling units on single-family lots and limiting restrictive zoning, owner-occupancy, and parking mandates.

Tiny Homes

Illinois requires tiny homes built on permanent foundations to comply with the state-adopted residential building codes administered by the Capital Development Board.

Animal Hoarding

Arizona criminalizes animal cruelty statewide under A.R.S. Section 13-2910, which covers neglect and inadequate care typical in hoarding cases, and applies uniformly in every jurisdiction.

Illinois defines and criminalizes companion animal hoarding under the Humane Care for Animals Act, applying uniformly through state criminal code statewide.

Beekeeping

Arizona requires every beekeeper to register apiaries with the State Department of Agriculture, regardless of city rules, and follows uniform statewide pest and disease management standards.

The Illinois Bees and Apiaries Act requires registration of all colonies with the Department of Agriculture and authorizes inspections to control diseases statewide.

Breed Restrictions

Illinois prohibits municipalities from declaring dogs dangerous or vicious solely based on breed under the Animal Control Act, requiring conduct-based determinations only.

Chickens & Livestock

Arizona generally leaves chicken and livestock keeping to municipal zoning, but state law protects agricultural operations on land zoned or used for farming under the Right to Farm Act.

Exotic Pets

Arizona Game and Fish Commission rules apply uniformly statewide and prohibit private possession of restricted live wildlife including big cats, primates, alligators, and venomous reptiles without a special license.

Illinois prohibits private possession of dangerous animals including big cats, bears, wolves, and primates under the Dangerous Animals Act, with limited exempt categories.

Dispensary Zoning

Arizona caps statewide marijuana establishment licenses and limits the local zoning conditions cities may impose under ARS Title 36 Chapter 28.2.

Juvenile Curfew

Illinois imposes a statewide juvenile curfew prohibiting minors under 17 from public places between specified late-night and early-morning hours.

Minimum Wage Preemption

Arizona's ARS 23-204 preempts cities and counties from adopting employer wage rules beyond the state minimum wage and benefits framework.

Illinois sets a $15 statewide minimum wage under the Minimum Wage Law and permits home rule cities like Chicago to require higher local wages for covered employees.

Coastal Development

The Illinois Department of Natural Resources Coastal Management Program regulates Lake Michigan shoreline development, applying uniform permit requirements along the entire Illinois coast regardless of municipality.

Erosion Control

Illinois law authorizes Soil and Water Conservation Districts to establish erosion control standards while NPDES rules require erosion controls at construction sites of one acre or more.

Flood Zones

Arizona statutorily delegates floodplain regulation to counties and flood control districts, setting uniform minimum standards for development in mapped floodplains statewide.

Illinois law requires state-issued permits for construction within regulatory floodways and mandates municipal participation in NFIP minimum standards across all designated flood hazard areas.

Stormwater Management

Arizona regulates stormwater discharges through the AZPDES program under ARS Title 49, requiring permits for construction, industrial, and municipal stormwater statewide.

Illinois EPA administers federally delegated NPDES stormwater permits requiring uniform construction and municipal stormwater controls that apply on top of any local stormwater ordinances.

Pool Barriers

Arizona enforces a uniform statewide swimming pool enclosure law requiring barriers around residential pools, with cities and counties bound to minimum standards but allowed to adopt stricter local rules.

Illinois requires pool enclosures meeting the state Swimming Pool and Bathing Beach Code, with statewide minimum barrier rules for public pools and statutory residential standards.

Fireworks

A.R.S. 36-1606 limits Arizona municipalities to regulating only the use, not sale, of permissible consumer fireworks and prohibits aerial fireworks statewide.

Illinois generally prohibits consumer fireworks statewide under the Pyrotechnic Use Act, allowing only novelty items like sparklers, smoke devices, and snakes for the public.

Outdoor Burning

Arizona regulates open burning through ADEQ air quality rules and DFFM forestry statutes, requiring permits for most outdoor burns and prohibiting burns during no-burn declarations.

Illinois EPA regulations restrict open burning statewide, prohibiting the burning of garbage, landscape waste in many urban areas, and any materials producing dense smoke or air pollution.

Propane Storage

Arizona adopts NFPA 58 through the State Fire Marshal, regulating LP-gas container size, placement setbacks, and installation statewide for residential and commercial propane storage.

Illinois regulates the storage, handling, and transport of liquefied petroleum gas statewide under the LPG Act, adopting NFPA 58 standards uniformly through the Office of the State Fire Marshal.

Wildfire Zones

Arizona Department of Forestry and Fire Management designates wildland-urban interface areas under A.R.S. 37-1301 and issues statewide fire restrictions during high-risk conditions.

Firearms in Vehicles

Arizona allows adults 21 and older to carry loaded firearms openly or concealed in private vehicles without a permit, subject to limited restrictions.

Illinois law sets uniform rules for transporting firearms in vehicles under the FOID Card Act and Firearm Concealed Carry Act, preempting local handgun transport ordinances.

Food Truck Permits

Arizona Department of Health Services regulates mobile food units statewide under A.R.S. Title 36, Chapter 8 and uniform food code rules in A.A.C. Title 9, applied through county health permits.

Illinois requires mobile food vendors to obtain certified food protection manager status and meet uniform sanitation standards under the Food Service Sanitation Code statewide.

Cottage Food Operations

Arizona's cottage food law allows registered home producers to sell non-potentially hazardous foods directly to consumers statewide, preempting most local food permit requirements.

Illinois preempts local bans on cottage food sales, allowing homemade food production in residential kitchens with statewide product, labeling, and registration standards superseding most municipal restrictions.

Home Daycare

Arizona requires state-level certification or licensing for in-home child care above defined child counts, preempting local approval of caregiver qualifications and ratios.

The Illinois Child Care Act establishes uniform licensing for home daycare operations, preempting local rules that would prohibit licensed family child care homes in residential zones.

Sanctuary Policy Preemption

Arizona law prohibits any city, county, or agency from limiting cooperation with federal immigration authorities, effectively banning sanctuary policies statewide.

The Illinois TRUST Act and Way Forward Act bar state and local law enforcement from civil immigration enforcement, holding ICE detainers, or contracting for immigration detention.

Native Plants

The Arizona Native Plant Law protects designated cacti, trees, and other species from destruction or removal without state permits, applying universally on private and public land regardless of municipal rules.

Tree Trimming

Illinois preempts municipal regulation of utility line clearance vegetation management through ICC rules that apply uniformly to all electric utilities.

Water Restrictions

Arizona regulates groundwater use through Active Management Areas (AMAs) under the 1980 Groundwater Management Act, applying mandatory conservation requirements to municipal water providers in five designated regions, including Phoenix and Tucson.

Weed Ordinances

Illinois law designates noxious weeds and requires landowners to control them on all property regardless of municipal weed ordinances.

Aircraft Noise

Aircraft noise in Illinois is governed exclusively by federal aviation law, leaving cities and the state without authority to regulate flight operations or in-flight sound.

Barking Dogs

Illinois Animal Control Act provides a uniform statewide definition of nuisance dogs and authorizes county animal control to impound chronic barkers regardless of city limits.

Industrial Noise

Illinois sets uniform statewide decibel limits for stationary industrial and commercial noise sources through Pollution Control Board rules under the Environmental Protection Act.

Dark Sky Rules

Arizona regulates outdoor lighting statewide through the Outdoor Light Control statutes, requiring shielded fixtures and limits on certain lamp types, particularly in counties hosting major astronomical observatories.

Abandoned Vehicles

Arizona Revised Statutes Title 28 establishes uniform statewide procedures for abandoned vehicle reporting, towing, notice to owners, and disposal through licensed agents.

The Illinois Vehicle Code establishes uniform procedures for declaring, towing, and disposing of abandoned vehicles on public and private property across all jurisdictions in the state.

Snow & Sidewalk Clearing

The Illinois Snow and Ice Removal Act shields residential property owners from liability for natural accumulations cleared in good faith, applying uniformly statewide.

Eviction Notice & Process

Under A.R.S. § 33-1368, Arizona landlords must give a 5-day written notice for nonpayment of rent and a 10-day notice to cure for other material lease violations before filing. Material and irreparable breaches allow immediate termination. Evictions proceed as special detainer actions under A.R.S. § 33-1377, with trial set 3–6 days out.

Illinois requires a 5-day written notice for nonpayment of rent (735 ILCS 5/9-209), a 10-day notice to quit for lease violations (735 ILCS 5/9-210), and a 30-day termination notice for ending a month-to-month tenancy without cause (735 ILCS 5/9-207). Only a court may order eviction.

Late Fees & Grace Periods

Arizona caps late fees only by a reasonableness standard. A.R.S. § 33-1368 lets a landlord charge a 'reasonable late fee set forth in a written rental agreement.' There is no fixed dollar limit, no percentage cap, and no statutory grace period — rent is late the day after it is due.

Illinois has no statewide statute capping residential rent late fees or setting a grace period. Late fees are governed by the written lease and general contract law, under which a fee must be a reasonable estimate of damages rather than a punitive penalty. Chicago and Cook County are separate, stricter regimes that cap late fees.

Lease Termination & Notice to Vacate

A.R.S. § 33-1375 requires 30 days' written notice to end a month-to-month tenancy (10 days week-to-week). Breaking a fixed-term lease early can incur damages, though landlords must mitigate. A.R.S. § 33-1318 lets domestic-violence and sexual-assault victims terminate early; military servicemembers terminate under the federal SCRA.

Under 735 ILCS 5/9-207, ending a month-to-month or other tenancy under one year requires 30 days' written notice; a week-to-week tenancy requires 7 days. The statute lets the landlord 'terminate the tenancy by 30 days' notice, in writing,' and then bring an eviction action. Fixed-term leases end on their stated date.

Rent Control

Arizona prohibits local rent control. State law makes rent regulation on private residential property a matter of statewide concern and preempts the field, so cities, charter cities, towns, and counties cannot cap or freeze rents on private housing. There is no statewide rent cap, leaving private rents to the market.

Illinois has no statewide rent control and no cap on rent increases. The Rent Control Preemption Act, 50 ILCS 825, bars every unit of local government, including home rule cities, from enacting, maintaining, or enforcing any ordinance that controls the rent charged for private residential or commercial property. No Illinois municipality has enforceable rent control.

Rent Increase Notice

Arizona has no statutory cap on how much a landlord may raise rent and no dedicated rent-increase notice statute. For a month-to-month tenancy, a rent change is implemented by serving the 30-day termination/change notice tied to the periodic rental date under A.R.S. § 33-1375. Fixed-term leases cannot be raised mid-term.

Illinois has no statewide statute setting a maximum rent increase or a dedicated advance-notice period for raising rent, and the Rent Control Preemption Act (50 ILCS 825) bars local rent control. On a month-to-month tenancy, a rent change takes effect only through the 30-day termination notice in 735 ILCS 5/9-207.

Repairs & Habitability

A.R.S. § 33-1324 requires Arizona landlords to keep rentals fit and habitable — meeting building codes, maintaining electrical, plumbing, heating and cooling systems, and supplying running water and heat. If a landlord fails to act, A.R.S. § 33-1361 lets tenants terminate after a 5-day or 10-day notice, and § 33-1363 allows repair-and-deduct.

Illinois recognizes an implied warranty of habitability in every residential lease through case law, not a single statute. The Illinois Supreme Court established it in Jack Spring, Inc. v. Little (1972), holding that all residential leases include the warranty, fulfilled by substantial compliance with applicable building codes. Chicago's RLTO adds detailed statutory standards.

Security Deposit Rules

Arizona caps security deposits at one and one-half month's rent. After the tenancy ends and the tenant requests it, a landlord has 14 days (excluding weekends and legal holidays) to return the deposit with an itemized list of deductions. Wrongful retention exposes the landlord to damages of twice the amount withheld.

Illinois sets no statewide cap on residential security deposits. Under the Security Deposit Return Act, 765 ILCS 710, a landlord of a building with 5 or more units who keeps any of a deposit for damage must furnish an itemized statement within 30 days of move-out, or return the deposit in full within 45 days, or owe double the deposit plus attorney's fees.

Squatter's Rights & Adverse Possession

Arizona's adverse possession periods are tiered: 2 years by right of possession alone (A.R.S. § 12-522), 3 years under color of title (§ 12-523), 5 years under a recorded deed with taxes paid (§§ 12-524, 12-525), and a 10-year catch-all (§ 12-526). Possession must be open, hostile, and continuous; removal is by court action.

Adverse possession in Illinois generally requires 20 years of possession (735 ILCS 5/13-101). The period drops to 7 years when the occupant holds under claim and color of title 'made in good faith' and pays all taxes assessed (735 ILCS 5/13-109), or holds connected record title with 7 years of actual residence (735 ILCS 5/13-107).

Agricultural Zoning Protection

Arizona limits local zoning power over agricultural land, protecting commercial farming activities from overly restrictive land-use regulation.

Illinois protects agricultural land through the Agricultural Areas Conservation and Protection Act and limits county zoning over farms outside municipal boundaries.

Insurance Requirements

A.R.S. 9-500.39 requires Arizona short-term rental operators to maintain at least $500,000 in liability insurance or rent through a marketplace providing equivalent coverage.

Noise Rules

A.R.S. 9-500.39 lets Arizona cities apply local noise ordinances to short-term rentals and impose escalating penalties for verified noise violations occurring on the premises.

Occupancy Limits

A.R.S. 9-500.39 lets Arizona cities cap nightly occupancy at two adults per bedroom plus additional persons, applying uniformly to short-term rentals statewide.

Permit Requirements

Arizona law limits how cities regulate short-term rentals but allows local licensing, emergency contact registration, and basic operational standards under A.R.S. 9-500.39.

Taxes & Fees

Arizona requires short-term rental operators to license with the Department of Revenue and remit transaction privilege tax plus any applicable county and city transient lodging taxes statewide.

Illinois imposes a 6% state Hotel Operators' Occupation Tax on short-term rentals of fewer than 30 consecutive days, including platforms like Airbnb and Vrbo, applied uniformly statewide.

HOA Restrictions

Arizona law voids HOA covenants that effectively prohibit solar energy devices, preempting community restrictions and requiring associations to allow reasonable installations under A.R.S. Section 33-1816.

Illinois law requires homeowners associations to permit solar energy systems through reasonable policies, prohibiting outright bans or unreasonable restrictions on installations.

Panel Permits

Arizona requires expedited residential solar permitting under SolarAPP+ adoption laws and provides statewide property tax exemptions for residential solar energy devices under A.R.S. Section 42-11054.

Illinois protects residential solar energy installations through the Homeowners Energy Policy Statement Act and limits unreasonable association or municipal restrictions.

Fencing Requirements

Arizona sets uniform minimum pool barrier requirements under A.R.S. Section 36-1681 for any new residential pool deeper than 18 inches, applicable in counties with populations over 250,000.

The Illinois Swimming Pool and Bathing Beach Act sets statewide minimum barrier and safety standards for public pools enforced by the Illinois Department of Public Health.

Safety Rules

Arizona aligns with the federal Virginia Graeme Baker Pool and Spa Safety Act and enforces state barrier laws, applying uniformly to public and certain private pools throughout the state.

Illinois requires lifeguards, safety equipment, and specific signage at public pools and bathing beaches under the Department of Public Health regulations.

Flavored Tobacco Bans

Arizona has no statewide flavor ban and preempts most local tobacco product sales restrictions, leaving flavored sales generally lawful.

Illinois has no comprehensive statewide flavored tobacco ban, but home rule municipalities such as Chicago and Evanston may regulate flavored e-cigarettes under local police power.

Vape Retail Rules

Arizona requires retailers to verify ID and bars sales of vapor products and e-cigarettes to anyone under 21 under ARS 36-798.03.

Illinois requires retailers selling electronic cigarettes and e-liquids to obtain Department of Revenue licensing and follow age-verification, packaging, and tax rules statewide.

Recycling Requirements

Illinois requires every county to develop and maintain a solid waste management plan with recycling provisions, and bans landfill disposal of landscape waste, electronics, and white goods statewide.